I tried the forced film again for making SVCD. Everything according the guide. The encoded file from Tmpgenc has gradually out of sync problem, so I de-multiplexed in Tmpgenc and multiplex in bbmpg using SVCD setting. The out of sync problem is still there. The .wav file from DVD2AVI is not the same length as the film. I guess it has nothing to do with Tmpgenc cannot display time correctly. It must be someting wrong with DVD2AVI. I will just use IVTC in the future. Thanks,